An exercise and rehabilitation chair and method includes pivotal front
support legs, rigid rear legs, a seat assembly having a seat bottom and
seat back and upper and lower arms, each upper and lower arm being
pivotally coupled at a rearward end to a pivotal support arm rigid with a
seat back and at a forward end to an upper end of a pivotal front leg.
Bearing structures pivotally connect corresponding support arms and rear
legs and establish a fulcrum about which the seat assembly may rotate.
The bearing structures are simultaneously adjustable longitudinally along
the pivotal support arms and rigid rear legs with displacement of the
fulcrum relative to a user's hips regulating the resistance of chair
operation. A foot assembly is pivotally coupled to the front legs and the
forward ends of the upper and lower arms. All pivotal connections
correspond anatomically to a user's joints for low joint stress and
low-resistance exercise.